172470-05-2 2(1H)-Pyridinone, 4-[(3,5-dimethylphenyl)thio]-5-ethyl-6-methyl- 2-Pyridinone, 4-PhS deriv. 5-Ethyl-6-methyl-4-[(3',5'-dimethylphenyl)thio]pyridin-2(1H)-one AIDS-043214 AIDS043214